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|
use std::fmt::{Display, Error, Formatter};
use std::time::Instant;
use zellij_utils::{
data::{PaletteColor, Styling},
errors::prelude::*,
};
#[derive(Debug, Clone, Default)]
pub struct LoadingIndication {
pub ended: bool,
error: Option<String>,
animation_offset: usize,
plugin_name: String,
terminal_emulator_colors: Option<Styling>,
override_previous_error: bool,
started_at: Option<Instant>,
}
impl LoadingIndication {
pub fn new(plugin_name: String) -> Self {
let started_at = Some(Instant::now());
LoadingIndication {
plugin_name,
animation_offset: 0,
started_at,
..Default::default()
}
}
pub fn set_name(&mut self, plugin_name: String) {
self.plugin_name = plugin_name;
}
pub fn with_colors(mut self, terminal_emulator_colors: Styling) -> Self {
self.terminal_emulator_colors = Some(terminal_emulator_colors);
self
}
pub fn merge(&mut self, other: LoadingIndication) {
let current_animation_offset = self.animation_offset;
let current_terminal_emulator_colors = self.terminal_emulator_colors.take();
let mut current_error = self.error.take();
let override_previous_error = other.override_previous_error;
drop(std::mem::replace(self, other));
self.animation_offset = current_animation_offset;
self.terminal_emulator_colors = current_terminal_emulator_colors;
if let Some(current_error) = current_error.take() {
// we do this so that only the first error (usually the root cause) will be shown
// when plugins support scrolling, we might want to do an append here
if !override_previous_error {
self.error = Some(current_error);
}
}
}
pub fn progress_animation_offset(&mut self) {
if self.animation_offset == 3 {
self.animation_offset = 0;
} else {
self.animation_offset += 1;
}
}
pub fn indicate_loading_error(&mut self, error_text: String) {
self.error = Some(error_text);
}
pub fn is_error(&self) -> bool {
self.error.is_some()
}
pub fn override_previous_error(&mut self) {
self.override_previous_error = true;
}
}
macro_rules! style {
($fg:expr) => {
ansi_term::Style::new().fg(match $fg {
PaletteColor::Rgb((r, g, b)) => ansi_term::Color::RGB(r, g, b),
PaletteColor::EightBit(color) => ansi_term::Color::Fixed(color),
})
};
}
impl Display for LoadingIndication {
fn fmt(&self, f: &mut Formatter) -> Result<(), Error> {
let cyan = match self.terminal_emulator_colors {
Some(terminal_emulator_colors) => {
style!(terminal_emulator_colors.exit_code_success.emphasis_0).bold()
},
None => ansi_term::Style::new(),
};
let red = match self.terminal_emulator_colors {
Some(terminal_emulator_colors) => {
style!(terminal_emulator_colors.exit_code_error.base).bold()
},
None => ansi_term::Style::new(),
};
let plugin_name = &self.plugin_name;
let add_dots = |stringified: &mut String| {
for _ in 0..self.animation_offset {
stringified.push('.');
}
stringified.push(' ');
};
let mut stringified = String::new();
if let Some(error_text) = &self.error {
stringified.push_str(&format!(
"\n\r{} {}",
red.bold().paint("ERROR: "),
error_text.replace('\n', "\n\r")
));
// we add this additional line explicitly to make it easier to realize when something
// is wrong in very small plugins (eg. the tab-bar and status-bar)
stringified.push_str(&format!(
"\n\r{}",
red.bold()
.paint("ERROR IN PLUGIN - check logs for more info")
));
} else {
let loading_text = "Loading";
stringified.push_str(&format!("{} {}", loading_text, cyan.paint(plugin_name)));
add_dots(&mut stringified);
}
if self
.started_at
.map(|s| s.elapsed() > std::time::Duration::from_millis(400))
.unwrap_or(true)
|| self.error.is_some()
{
write!(f, "{}", stringified)
} else {
Ok(())
}
}
}
|
